いちいち調べるのが面倒くさいのでテンプレートをまとめるページ．
python
main.py
# -*- coding: utf-8 -*-
# use arguments #
import sys
cmd, *args = sys.argv
# use standard input #
stdin = input()
def main():
# processing
if __name__ == '__main__':
main()
html(+Vue.js)
main.html
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<Title>Title</Title>
<link href="css/main.css" rel="stylesheet">
</head>
<body>
<div id="app">
</div>
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script>
<script src="js/main.js"></script>
</body>
</html>
main.js
var app = new Vue({
el: '#app'
})